%0 Journal Article
%A J.M. Anderson
%A A. Hinkkanen
%T Quadrilaterals and extremal quasiconformal extensions.
%J Commentarii mathematici Helvetici
%D 1995
%P 455-474
%V 70
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/CMH_1995__70_3_140379/
%F CMH_1995__70_3_140379